nsure What to do About Sick or Damaged Trees? Find out from our local tree company in Billings, MT Healthy trees can endure a lot of harsh weather. They can also add beauty and value to your property. On the other hand, unhealthy trees can easily become eyesores that start to fall apart after small storms. Montana Tree Service is a local tree company dedicated to serving the Billings, MT area. You can rely on us to provide comprehensive tree service for your property.